With a DFS server there are several configuration settings which needs to be done in the registry. This blog entry is planned to be updated when I discover the use or values.

Friendly name Value name Location Default value Possible values explanation
Server Consolidation Retry  ServerConsolidationRetry  HKLM\SYSTEM\CurrentControlSet\Services\Dfs\Parameters\Replicated 0 0/1 Enabled the DFS consolidation root.
LogServer Consolidation LogServerConsolidation  HKLM\SYSTEM\CurrentControlSet\Services\Dfs\Parameters\Replicated 0 0/1 Enables logging of DFS consolidation root to find system using the paths.
Sysvol Netlogon Target Failback SysvolNetlogonTargetFailback  HKLM\SYSTEM\CurrentControlSet\Services\Dfs\Parameters 0 0/1 Enables Sysvol & Netlogon Fallback.
DFS DNS Config  dfsdnsconfig  HKLM\SYSTEM\CurrentControlSet\Services\Dfs 0 0/1 Enables FQDN referals for domainbased DFS roots.
Sync Interval In Seconds SyncIntervalInSeconds HKLM\SYSTEM\CurrentControlSet\Services\Dfs 3600 ? Specifies how often DFS root servers and DCs should poll the PDC for changes.
DomainNameIntervalInSeconds ? ?  43200 ? How often DCs learn what DFS namespaces are available.
SiteCostedReferrals Site Costed Referrals HKLM\SYSTEM\CurrentControlSet\Services\Dfs\Parameters 0 0/1 Specified on DCs for returning out of site root servers in costorder.
LdapTimeoutValueInSeconds ? ? 30 3-300 ? Undocumented Feature
MaxClientsToCache ? ? 200000 ? Number of clients the DFS server stores the computers site.
QuerySiteCostTimeoutInSeconds ? ? 30 ? How long the DFS service should wait for a response on which site the computer is.
RootReferralTimeoutInSeconds ?  ? 900 ? How long domaincontrollers should remember root servers for a namespace.
SiteSupportIntervalInSeconds ? ? 43200 ? How long before starting to remove computer to site matching
NumWorkerThreads ? ?  ? ? ? Undocumented Feature
PreferLogonDc ? ?  blank <servername> Sets the servername at the top of the referral list
ForceReferralVersionNumber ? ?  ? ? ? Undocumented Feature
AllowableErrorsValue ? ? ? ? ? Undocumented Feature
Disable Site Awareness DfsDisableSiteAwareness HKLM\SYSTEM\CurrentControlSet\Services\Dfs\Parameters  0 0/1 Reduces delay in NT4 domain
Skip Resync DfsSkipResync HKLM\SYSTEM\CurrentControlSet\Services\Dfs\Parameters  0 0/1 Can reduce time for import on standalone Namespace
DomainFunctionalLevelOverride ? ? ? ? Undocumented Feature
MaxSitesToCache ? ? ? ? Undocumented Feature
SiteNameLength ? ? ? ? Undocumented Feature

Sources:

  • DFS-N: Client failback should be enabled for the Netlogon and SYSVOL folders on domain controllers
  • How to configure DFS to use fully qualified domain names in referrals
  • Disabling site awareness for Windows Server 2003 or for Windows 2000 DFS in a Windows NT 4.0 domain
  • The “Dfsutil /import” command takes a long time to finish when you try to import DFS links to a stand-alone DFS root on a Windows Server 2003-based computer
  • DFS-N: The DFS Namespaces sync interval should be set to the default value of 1 hour
  • How DFS Works